The 40x40x3mm Square Pipe (also known as a Square Hollow Section) is a highly versatile structural tube used extensively in construction and general fabrication. Featuring a uniform 40mm profile with a 3mm wall thickness, this pipe provides an excellent strength-to-weight ratio and high torsional rigidity. The flat surfaces make it easy to join, weld, and bolt, while the hollow center reduces overall weight without compromising structural integrity. It is a preferred choice for building gate frames, protective railings, lightweight trailers, and support stands where a clean, symmetrical aesthetic is required alongside dependable durability.
